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Key Technical Points for Scion Preparation in Conventional Walnut Propagation
1. Source of scions - Select superior varieties as mother trees for scion collection and establish a scion orchard. Cutting scions from a scion orchard ensures variety purity. Scion mother trees should be of pure variety, grow vigorously, and be free of pests and diseases. After collecting scions, they must be labeled to prevent mixing, because
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Key Technical Points for Seedling Management During the Walnut Nursery Stage
Walnut seeds begin to sprout about 20 days after spring sowing and emerge completely by around 40 days. During this period, check the emergence of seedlings every day. Once the seedlings emerge from the soil, promptly cut open the plastic film with a small knife to prevent scalding the seedlings, and at the same time cover the cut film firmly with moist soil. Strengthening management during the seedling stage is the key to cultivating strong seedlings.
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Management Methods and Technical Points for Walnut Seedlings After Grafting
From grafting in May and June to the grafted seedlings leaving the nursery in October, there are only a few short months. In order to ensure the robust growth of grafted seedlings and cultivate high-grade nursery stock, management needs to be strengthened. 1. Check survival and fill in grafts. About 1 week after walnut bud grafting, check whether the graft has survived. Fresh and plump grafted buds indicate successful grafting, while blackened grafted buds indicate failure, and timely re-grafting should be carried out.
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Key Points for Choosing a Walnut Orchard Site: How to Select a Good Plot for Orchard Establishment
The selection of a walnut orchard site is directly related to the success or failure of pollution-free walnut production and the level of its economic benefits. To achieve the goals of early fruiting, high quality, high yield, high efficiency and pollution-free production as much as possible, a site should be chosen that is flat, has deep soil layers, fertile soil, is sheltered from the wind and facing the sun, and has convenient transportation.
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Detailed Explanation of Key Technical Points for Planting Walnut Nursery Stock
1. Planting period. The planting of walnut trees can be divided into two types: spring planting and autumn planting. Autumn planting refers to planting after the nursery stock drops its leaves in autumn and before the soil freezes. Spring planting is carried out after the soil thaws and before the nursery stock buds in spring. In the past, walnuts were generally spring-planted, but in
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Detailed Explanation of Key Technical Points for Deep Plowing and Soil Improvement in Walnut Orchards
Deep plowing and soil improvement is one of the main technical measures for improving soil in walnut orchards, and is suitable for areas with poor soil conditions. Through deep plowing, on the one hand it can play a role in storing water and preserving moisture and improving soil structure; on the other hand it can enhance the activity of soil microorganisms and accelerate
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What are the main fertilization methods for walnut trees? A detailed explanation of key fertilization points
The walnut fertilization methods currently used in China are mainly two types: soil fertilization and foliar spraying. Soil fertilization can be carried out in combination with soil ploughing. In order to facilitate root absorption and utilization and maximize fertilizer efficiency, when applying soil fertilizer, the fertilizer must be placed in the concentrated distribution layer of the root system.
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Key Technical Points for Cultivation and Management of Walnut Trees During the Growth Period
Based on the significant changes in tree growth and development characteristics throughout the life of a walnut tree, the growth period of the fruit tree can be roughly divided into: juvenile stage, initial fruiting stage, full fruiting stage, and senescence stage. In production, corresponding cultivation and management technical measures can be adopted according to the characteristics of each growth and development stage
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Rational Intercropping Cultivation Models and Key Technical Points for Walnut Trees
Intercropping is an important cultivation model. Rational intercropping can make full use of space, land and light energy, and improve economic returns, especially the early returns of young walnut orchards. The types and methods of intercropping should follow the principle of not affecting the growth and development of walnut trees. According to
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What are the key points for the feeding and management of breeding boars?
(1) Nutrition and rational feeding of breeding boars. The diet of breeding boars should have good palatability, and its volume should not be too large, so as to avoid causing a big belly. Each kilogram of diet contains 12.9 megajoules of digestible energy, 17% protein, 7.9 grams of lysine, 2.6 grams of methionine, and a moderate calcium-to-phosphorus ratio,
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